[mojo-edk] Add support for transferring mach ports.

mojo/mojo_edk.gyp

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'includes': [
     'mojo_variables.gypi',
   ],
   'target_defaults' : {
     'include_dirs': [
@@ skipping 128 matching lines @@
         ['OS=="android"', {
           'dependencies': [
             '../third_party/ashmem/ashmem.gyp:ashmem',
           ],
         }],
         ['OS=="win"', {
            # Structure was padded due to __declspec(align()), which is
            # uninteresting.
           'msvs_disabled_warnings': [ 4324 ],
         }],
+        ['OS=="mac" and OS!="ios"', {
+          'sources': [
+            'edk/system/mach_port_relay.cc',
+            'edk/system/mach_port_relay.h',
+          ],
+        }],
       ],
     },
     {
       # GN version: //mojo/edk/js
       'target_name': 'mojo_js_lib',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../gin/gin.gyp:gin',
         '../v8/tools/gyp/v8.gyp:v8',
@@ skipping 92 matching lines @@
         'mojo_public.gyp:mojo_public_test_support',
         'mojo_system_impl',
         'mojo_test_support_impl',
       ],
       'sources': [
         'edk/test/run_all_perftests.cc',
       ],
     },
   ],
 }